YouTuber Seikin undergoes endoscopy for severe stomach pain

j-cast.com (Japanese)

Popular YouTuber Seikin reported undergoing an endoscopy due to severe stomach pain. The 4.91 million subscriber YouTuber revealed in a video on September 7, 2025, that he was diagnosed with erosive gastritis after experiencing intense stomach discomfort. Seikin experienced the pain for about three weeks, attributing it to fatigue from demanding filming schedules.


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YouTuber Seikin undergoes endoscopy for severe stomach pain | News Minimalist